Trains from Heathrow Airport to Southampton from $31.21*

Arriving in Southampton

Trains running from Heathrow Airport to Southampton will typically depart from Heathrow Term2,3 and arrive at Southampton Airport Parkway. The journey takes around 1h 39m.

Book cheap train tickets from Heathrow Airport to Southampton

It doesn’t need to be difficult to find cheap train tickets from Heathrow Airport to Southampton. If you know where to look and how to take advantage of available discounts and travel options, then saving money with Trip.com becomes second nature. Here are some of our top tips to help you save money on your train travel.

Get 1/3 off with a Railcard

With a Railcard, you can save up to 1/3 on most rail fares. There are different types of Railcards available, such as the 16–25 Railcard, the Family & Friends Railcard, and the Senior Railcard, each designed to cater to specific groups of travelers. You can discover more about Railcards here.

Traveling during off-peak hours

Taking advantage of Off-Peak train tickets is another effective way to save money on your train journey from Heathrow Airport to Southampton. These tickets are generally cheaper than peak-time tickets and can be used during less busy periods, typically outside of the morning and evening rush hours. If your schedule allows for flexibility, opting for off-peak hours can lead to substantial cost savings. It's important to note that in most cities and large towns, off-peak hours usually start at 09:30 from Monday to Friday, while in other areas, they typically begin at 09:00.

Split Tickets to save an average extra 30%

How can you make your journey from Heathrow Airport to Southampton cheaper? One option to consider is splitting your tickets, which can save you around an extra 30% on fares. Instead of purchasing a direct ticket from A to B, you can split the route into two sections: A to C and C to B. This often turns out to be more affordable than buying a direct ticket.